Extreme Heat Warnings Issued Across 10 Arizona Counties

The National Weather Service has issued an Extreme Heat Warning for ten Arizona counties, with temperatures expected to soar as high as 117°F.

Warning Dates by County:

Coconino County: July 7–10
Gila, Maricopa, Pinal Counties: July 8–10
Graham, Greenlee, Pima, Yavapai Counties: July 9
La Paz, Yuma Counties: July 9–10

Heat Safety Reminder:

Extreme heat can affect everyone, but taking simple steps can help protect you and those in your care.

Heat Danger Inside Cars

Interior car temperatures can become life-threatening within minutes—even if it’s just 80°F outside. In 20 minutes, the inside of a car can hit 109°F. Parking in the shade or cracking windows does not prevent deadly heat buildup.
Never leave children, older adults, pets, or anyone in a parked car—even briefly. Always double-check your back seat before locking up.

Safety Tips During Extreme Heat

Stay Cool:

Limit outdoor activities to early mornings or evenings
Use cooling centers, hydration stations, or respite centers for air conditioning and water
Never leave children or pets in vehicles

Stay Hydrated:

Drink water regularly throughout the day
Avoid alcohol, sugary drinks, and caffeine

Stay Informed:

Know the symptoms of heat illness: dizziness, cramps, nausea, headache, confusion
Check the forecast for temperatures, air quality, and UV index
View today’s HeatRisk map from the National Weather Service

Stay Connected:

Check on elderly relatives, neighbors, those with medical conditions, and unhoused individuals
Let loved ones know your location if hiking, camping, or taking road trips
Use Arizona 511 to stay updated on traffic and road conditions

Be SunWise:

Wear hats, sunglasses, and lightweight clothing
Use sunscreen with SPF 30 or higher to protect against UV rays

Take the heat seriously—your safety depends on it.

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